Garment pressing machine



Jan. 19, 1937. YOSYK 2,068,527

GARMENT PRESSING MACHINE Filed Aug. 2, 1955 3 Sheets-Sheet 3 INVENTOR.

Patented Jan. 19, 1937 UNITED STATES OFFIQE Application August 2,

2 Claims.

My present invention relates to garment pressing machines, andparticularly to improvements in manually operable pressing machines,wherein the pressing elements are brought to closed position by means oftoggle mechanism actuated by a foot lever.

The objects of the present invention include the provision of togglemechanism for moving the pressing elements to closed and open position,and characterized by ease and evenness of motion both during closing andopening of the press, and providing for relatively small effort againstslight amount of movement of the pedal lever when closing the press toobtain a very great pressure between the elements.

The foregoing and all of the objects and advantages of the inventionwill become more apparent and will be pointed out during the course ofthe following detailed description of the accompanying drawings, inwhich Fig. 1 is a side view partly in section taken on the line l-l ofFig. 4, and showing a pressing machine embodying my present invention inclosed position;

Fig. 2 is a perspective view of the toggle mechanism of Fig. 1 withparts thereof shown fragmentarily;

Fig. 3 is a view similar to Fig. 1 parts in open position;

Fig. 4 is a View taken on the line 4-4 of Fig. l; and

Figs. 5, 6 and 7 are diagrammatic views of modifications of theinvention.

Referring to Figs. 1-4, wherein is shown a preferred form of theinvention, the letter B designates generally a buck or lower pressingelement mounted above the usual table T supported on the frame F of themachine. The frame F has at its top an extension 8 on which the headlever 9 is fulcrumed at In, the lever 9 carrying at its outer end theusual head or upper pressing element H. The rear end of the lever 9 isconnected by mechanism designated generally by the numeral H (shown anddescribed in detail in my Patent 1,992,342, February 26, 1935) to theupper link 12 of the rear or main toggle which includes also therelatively long lower links l3 pivotally connected at 14 to the link I2and fulcrumed at l on the lower rear portion of the frame F.

The front [6 of the frame F is provided with rearwardly extending wingsor brackets 11, to which are secured studs l8 receiving the forward endsof coil springs l9, the rear ends of which are secured to studs 20 onthe links I3, the

showing the 1935, Serial No. 34,438

springs tending to normally break the toggle I2-l3 and hold the press inopen position.

A shaft 2! is secured between the brackets or wings l! and forms ajournal for the end 22 of the foot lever 23, the other end of whichextends through an opening it in the front It of the frame, and isprovided with a pedal 25. A link 26 is pivotally secured at its lowerend as designated at 21 tothe foot lever 23, and at its upper end ispivotally secured as at 28 to one arm 29 of a bell crank, pivotallymounted on a shaft 30 secured between the brackets H. The other arm 31of the bell crank is pivotally connected as at 32 to the forward end ofa link 38, the other end of which receives a pin 34 which forms theconnection between the links 35 and 36 of a second toggle. The links 35are pivotally connected at 31 to the long link E3 of the rear maintoggle and are provided with an extension 38 projecting beyond the linkit and having slots 39 to receive the bolts 40, which extend throughweight ll and receive nuts 42 to adjustably hold the weight on theextensions 38.

As stated, the parts described are normally in the position of Fig. 3,at which time the press is open. When the lever 23 is depressed, theparts are moved to the position of Fig. 1, that is, in closed position,and in which position the press may be locked by throwing the toggle3536 past dead center. The link 36 is preferably provided with anextension 43, through which is mounted set screws M, the inner ends ofwhich carry pads 45, to abut the links 35. Obviously, adjustment of thescrews 44 will move the pads relatively to the link 35 and therebyprovide for locking the machine when it is closed or bringing the partsto closed position without locking it in such position. Where the toggle35-36 is locked or brought past dead center when the machine is closed,it is desirable to provide means for breaking the toggle to effectopening of the machine, and in this connection I may provide a kick-offlever 46 pivotally mounted at 41 adjacent the pedal lever and providedat its outer end with a treadle it and at its inner end with a curvedportion 49 engageable with the pedal lever 23 when the treadle id isdepressed to break the toggle and open the press.

The foregoing description is general, and I wish to call particularattention tothe fact that the pedal lever 23 is substantially L-shapehaving the short arm or end 22 intermediate the pivots 2| and 21, whilethe remaining portion of the pedal lever constitutes a relatively longarm. By forming the pedal lever as shown, and pivotally connecting itadjacent the front of the machine, instead of adjacent the rear, Iprovide a relatively short arm between the fulcrum and the point wherethe power is applied, and a long arm between the point where the poweris applied and the point at which the effort is applied. This not onlycontributes materially to the ease of movement, but also provides forrelatively short movement and slight effort in closing the press.Furthermore, by providing the weight ll on the extension 36 of the link35, to swing downwardly when the pedal lever is pressed downwardly andthe toggle 35-36 is being straightened, I further contribute to the easeof movement and slight effort in closing the press with great pressureat finally closed position. Still a further contribution to theaccomplishment of this movement and relatively great pressure is theprovision of the plurality of independent connections between the pedallever and the toggle namely, the link 26 which makes a direct pull downon the bell crank arm 29 when the pedal lever is depressed to swing thebell crank on its pivot 36 and turning arm iii to pull up on link 33 atthe point of connection between the links 36-36. The provision of theweight ll while assisting materially to the accomplishment of theobjects of the invention above stated is not absolutely essential andthe same may be omitted if desired, and, furthermore, when provided maybe adjustable on the extension 36 to desired positions.

While the operation of the parts should be obvious from the foregoing, Iwill briefly describe the same referring first to Fig. 3, wherein thespring i6 is maintaining the press in open position with the togglesbroken and with the pedal lever 23 raised. When the operator steps onthe pedal 25 and depresses the same to rock lever 28 on fulcrum 21, thelink 26 moves from the vertical position of Fig. 3 to the inclinedposition of Fig. l swinging the bell crank to pull up on link 33 and onpivot 3t straightening toggle 35-36. Simultaneously the weight M islowered assisting in the straightening of the said toggle and furtherassisting in the straightening of the toggle li -it, which exerts anupward thrust on the connection 5 l swinging the lever 9 on its pivot l6and closing the head II against the buck B. The connection H, asexplained in my said patent assists in the application of the pressureand automatically adjusts the head H relative to the buck B regardlessof the thickness of the material therebetween.

In the embodiment of the invention above described in connection withFigs. 1-4, the bell crank is mounted to pull up the toggle 35-36 inclosing the press, since the toggle breaks downwardly when the pressopens.

In Figs. 5, 6, and 7 I have shown modifications of the invention withthe movable parts shown in dotted lines at open position of the pressand in full lines at closed position of the press.

In Fig. 5, I have shown a modification, wherein the pedal lever isfulcrumed at 25 on shaft or pin extending between the brackets l'l'carried by the front of the frame. The L-shaped lever 23' is reversed,that is, the arm which is connected to the shaft 2 l is substantiallystraight and the band occurs adjacent the pedal 23'. However, as in theembodiment of the invention previously described, the toggle 36-35 issubstantially the same and the link 36 is pivotally mounted on the shaft24 on which the pedal lever 23' is fulcrumed. Instead of having the linkwhich connects the pedal lever to the bell crank in a normally verticalposition, the same is inclined in both open and closed positions of thepress, being connected at 21 to the pedal lever and at 28 to the arm 29'of the bell crank. The bell crank is mounted on .a pivot 39 on the baseof the frame instead of being fulcrumed on the brackets carried by thefront of the frame as in Fig. 1. The arm 3| of the bell crank is connected at 32 to the link 33, corresponding to the link 33 of Figs. 1-4,and which link is pivoted on the pin or shaft which serves as thepivotal connection between links 35 and 36, of the toggle 3536.

In the embodiment of Fig. 5, I obtain the same result, as in thestructure of Figs. 1-4, due to the fact that the pedal lever 23 isrelatively short, is fulcrumed adjacent the front of the frame, andthrough the plurality of independent connections, namely, link 25, bellcrank lever and link operates the toggle 3536 which also carries theweight ll corresponding to the weight M, and which during closingmovement of the press descends to assist in applying the pressure whileclosing the press. The main difference between the embodiment of theinvention in Figs. ll, and that of Fig. 6, is that instead of pullingfrom the pedal lever on one arm of the bell crank, and pushing from theother arm of the bell crank to straighten the toggle 35-36 in closingthe press, the link 36 corresponding to the link and the action of thebell crank and parts operated thereby is reversed so that a pushingaction is obtained from the pedal lever on one arm of the bell crank tocause the other arm to pull to straighten the said toggle and close thepress.

Under this arrangement, that is, the construction of Fig. 5, wherein thetoggle 35-36 flexes upwardly, the link 63' corresponding to the link 33is connected on the shaft 34 at one end and at 32" to the arm 29" of thebell crank, which is mounted on the shaft 36" secured between the wingsor brackets I?" on the front wall of the frame similarly to the shaft36. The arm 3| of the bell crank is pivotally connected to the link 26"also connected at 21 to the foot lever 23". In the embodiment of theinvention being described, the foot lever 23" is substantially the samein construction as the foot lever 23 of Fig. 1, and the location of thefulcrum 2| and the pivotal connection 21" are substantially the same asthe arrangement of the fulcrum 2| and connection 21 of Fig. 1.

One difference between the construction and arrangement of parts of Fig.6, and that of Figs. 1-4, is that the position of the bell crank isreversed, that is, its apex is pointed upwardly with the arms 29 and 3!depending downwardly, whereas in the construction of Figs. 1-4, the armsof the bell crank normally point upwardly and the apex pointsdownwardly. The reason for this is that the toggle 35-36 in Fig. 6,flexes upwardly, so that when the foot lever 23" is depressed, the link26" pulls down on the arm 3| causing the arm 29" and link 33" to pushdownwardly to straighten the toggle 3536, it being understood thatduring closing of the press, the bell crank in Fig. 6 moves incontra-clockwise direction, and during opening of the press movesclockwise. Since the outer end of the link 35 moves upwardly during theclosing of the press, under the construction of Fig. 6, I preferablyomit the weight shown on the extensions 38 of Fig, 1, because the Weightwould have to be lifted during closing of the press, whereas in theconstruction of Fig. 1 the weight is lowered during closing of thepress.

Referring to Fig. 7 it will be noted that the bell crank is mountedsimilarly to that of Fig. 5, but the link 26" is connected to theforward arm 3l of the bell crank instead of to the rear arm as in Fig.5. This is due to the fact that the toggle 3536 in Fig. '7 flexesupwardly as in Fig. 6, and it is necessary for the arm 29" of the bellcrank to exert a pull on the link 33 instead of a thrust as in Fig. 5.The pedal lever 23 is of slightly different formation than the pedallevers of Figs. 5 and 6, being substantially L-shaped, and yet,including the pedal, being also substantially S-shaped. The link 26 isconnected at 21 to the pedal lever 23" intermediate its ends. The bellcrank and pedal lever are pivoted on journals Zl and 30", respectively,secured between the wings or brackets l'l' on the front of the frame,Obviously, when the pedal lever 23" is moved from the dotted lineposition to the full line position, the link 26 exerts a thrust against,or pushes, the arm Sl' of the bell crank, causing the arm 29" to pulldown on the link 33" to straighten the toggles and close the press.

I claim:

1. In a pressing machine including a frame, a pair of pressing elementsone movable relatively to the other, a main toggle consisting of twointerjointed links, one of which links is connected to said one elementand the other of which links is fulcrumed on said frame, a second toggleconsisting of interjointed links having one link connected to one of thelinks of the first toggle device and the other link fulcrumed on theframe, a bell crank lever pivotally mounted on the frame adjacent to thefront thereof, a link operatively connecting one arm of said bell crankand the jointed ends between the two links of the second toggle device,a pedal lever pivotally mounted on the frame jointly with the mountingof the end of one of the links of the second toggle device forrelatively short movement, and a link connecting said pedal lever andthe other arm of the bell crank device, so that actuation of the pedallever will cause a straightening out of the toggle devices so as tobring the pressing elements into pressing relation.

2. In a pressing machine including a frame, a pair of pressing elementsone movable relatively to the other, a main toggle device consisting oftwo interjointed links having one link connected to said one element andthe other link fulcrumed on said frame, a second toggle deviceconsisting of interjointed links having one link connected to one of thelinks of the first toggle device and the second link fulcrumed on theframe, a bell crank lever pivotally mounted on the frame adjacent to thefront portion thereof, a link operatively connecting one arm of saidbell crank lever and the jointed connection between the ends of the twolinks of the second toggle device, a pedal lever pivotally mounted inthe frame adjacent to the front portion thereof, the pivotal mountingbeing at the same point where one of the links of the second toggledevice is pivoted to the front portion of the frame, a link operativelyconnecting said pedal lever at a point below where the end thereof ispivoted to the frame with the other arm of said bell crank lever, sothat upon depression of the said pedal lever the toggle devices will alljointly operate for the purpose of bringing the pressing elements intopressing relation, the link which connects the.

pedal lever and the bell crank lever exerting a pull on the bell cranklever, and the link which connects the bell crank lever with the jointbetween the links of the second toggle device exerting a pull on saidsecond toggle device.

THOMAS YOSYK.

